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<h4 class="subsubsection" id="Paired_002dSingle-Arithmetic-1"><span>6.60.17.1 Paired-Single Arithmetic<a class="copiable-link" href="#Paired_002dSingle-Arithmetic-1"> &para;</a></span></h4>

<p>The table below lists the <code class="code">v2sf</code> operations for which hardware
support exists.  <code class="code">a</code>, <code class="code">b</code> and <code class="code">c</code> are <code class="code">v2sf</code>
values and <code class="code">x</code> is an integral value.
</p>
<table class="multitable">
<thead><tr><th width="50%">C code</th><th width="50%">MIPS instruction</th></tr></thead>
<tbody><tr><td width="50%"><code class="code">a + b</code></td><td width="50%"><code class="code">add.ps</code></td></tr>
<tr><td width="50%"><code class="code">a - b</code></td><td width="50%"><code class="code">sub.ps</code></td></tr>
<tr><td width="50%"><code class="code">-a</code></td><td width="50%"><code class="code">neg.ps</code></td></tr>
<tr><td width="50%"><code class="code">a * b</code></td><td width="50%"><code class="code">mul.ps</code></td></tr>
<tr><td width="50%"><code class="code">a * b + c</code></td><td width="50%"><code class="code">madd.ps</code></td></tr>
<tr><td width="50%"><code class="code">a * b - c</code></td><td width="50%"><code class="code">msub.ps</code></td></tr>
<tr><td width="50%"><code class="code">-(a * b + c)</code></td><td width="50%"><code class="code">nmadd.ps</code></td></tr>
<tr><td width="50%"><code class="code">-(a * b - c)</code></td><td width="50%"><code class="code">nmsub.ps</code></td></tr>
<tr><td width="50%"><code class="code">x ? a : b</code></td><td width="50%"><code class="code">movn.ps</code>/<code class="code">movz.ps</code></td></tr>
</tbody>
</table>

<p>Note that the multiply-accumulate instructions can be disabled
using the command-line option <code class="code">-mno-fused-madd</code>.
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